<!DOCTYPE html>
<html lang="en">
<head>
   <meta charset="UTF-8">
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   <title></title>
   <script src="../js/vue.js"></script>
   <style>
    .rect{
        display: flex;
        width: 400px;
        height: 200px;
        background-color: aqua;
    }
    .blue{
        width:100px;
        height: 100px;
        background: blue;
    }
    
   </style>
</head>
<body>
   <div id="app">
   <div class="rect" v-on:click.self="alertRed">
    <div class="blue" v-on:click="alertBlue">我是蓝色区域</div>
   
   </div>
 
   </div>
</body>
  <script>
      var vm = new Vue({
          el:"#app",
          data:{
         
          },
          methods:{
           alertBlue:function(){
            console.log("blue");
           },
           alertRed:function(){
            console.log("red");
           }
          }
        })
  </script>
</html>